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Research Output 1999 2019

2019

An experimental study of the drag reducing surfactant for district heating and cooling

Kotenko, M., Oskarsson, H., Bojesen, C. & Nielsen, M. P., Jul 2019, In : Energy. 178, p. 72-78 7 p.

Research output: Contribution to journalJournal articleResearchpeer-review

District heating
Drag
Surface active agents
Cooling
Tubes (components)

Application of Software in Predicting Thermal Behaviour of Solar Stills

DevRoy, A., Prakash, O., Singh, S. & Kumar, A., 2019, Solar Desalination Technology. 1st ed. Springer VS, p. 105 148 p. (Green Energy and Technology).

Research output: Contribution to book/anthology/report/conference proceedingBook chapterResearchpeer-review

Open Access

Compact modeling of a telecom back-up unit powered by air-cooled proton exchange membrane fuel cell

Gao, X. & Kær, S. K., 2019, (Submitted) In : Applied Energy. APEN-S-17-12711.

Research output: Contribution to journalJournal articleResearchpeer-review

Proton exchange membrane fuel cells (PEMFC)
fuel cell
membrane
air
Air
1 Citation (Scopus)

Fault Characterization of a Proton Exchange Membrane Fuel Cell Stack

Simon Araya, S., Zhou, F., Sahlin, S. L., Thomas, S., Jeppesen, C. & Kær, S. K., Jan 2019, In : Energies. 12, 1, p. 1-17 17 p., 152.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
Fuel Cell
Proton exchange membrane fuel cells (PEMFC)
Drying
Fault
Membrane

Flexible district heating network model development for mass flow, pressure and heat loss prediction

Remiro, L. C., Singh, S. & Iov, F., 2019, (Accepted/In press) Book of abstracts: 4th International Conference on Smart Energy Systems and 4th Generation District Heating.

Research output: Contribution to book/anthology/report/conference proceedingConference abstract in proceedingResearchpeer-review

High performance octahedral PtNi/C catalysts investigated from rotating disk electrode to membrane electrode assembly

Li, B., Wang, J., Gao, X., Qin, C., Yang, D., Lv, H., Xiao, Q. & Zhang, C., Feb 2019, In : Nano Research. 12, 2, p. 281-287 7 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Rotating disks
Membranes
Electrodes
Catalysts
Oxygen

Hydrogen mass transport resistance changes in a high temperature polymer membrane fuel cell as a function of current density and acid doping

Thomas, S., Araya, S. S., Frensch, S. H., Steenberg, T. & Kær, S. K., Sep 2019, In : Electrochimica Acta. 317, p. 521-527 7 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Fuel cells
Hydrogen
Polymers
Current density
Mass transfer
1 Citation (Scopus)
8 Downloads (Pure)

Impact of iron and hydrogen peroxide on membrane degradation for polymer electrolyte membrane water electrolysis: Computational and experimental investigation on fluoride emission

Frensch, S. H., Serre, G., Fouda-Onana, F., Jensen, H. C., Christensen, M. L., Simon Araya, S. & Kær, S. K., Apr 2019, In : Journal of Power Sources. 420, p. 54-62 8 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
peroxides
electrolysis
hydrogen peroxide
Fluorides
Electrolysis

Implementing the Introduction, Methods, Results and Discussion report structure in engineering education

Liso, V., 2019, (Submitted) In : International Journal of Educational Research.

Research output: Contribution to journalJournal articleResearchpeer-review

1 Citation (Scopus)

Investigation of Vortex Generator Enhanced Double-Fin and Tube Heat Exchanger

Singh, S., Sørensen, K. & Condra, T. J., Feb 2019, In : Journal of Heat Transfer. 141, 2, p. 1-13 13 p., 021802.

Research output: Contribution to journalJournal articleResearchpeer-review

Tubes (components)
Gas generators
Vortex flow
Heat transfer
Flow of fluids

Investigation on transient performance of a large-scale packed-bed thermal energy storage

Singh, S., Sørensen, K., Condra, T., Batz, S. S. & Kristensen, K., Apr 2019, In : Applied Energy. 239, p. 1114-1129 16 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Packed beds
Thermal energy
Energy storage
Exergy
exergy

Large-scale packed-bed truncated conical thermal energy storage

Singh, S. & Sørensen, K., 2019, (Accepted/In press) Proceedings of ASME - JSME - KSME Joint Fluids Engineering Conference 2019 & Computers and Information in Engineering Conference.

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

Long-term contamination effect of iron ions on cell performance degradation of proton exchange membrane water electrolyser

Li, N., Araya, S. S. & Kær, S. K., Sep 2019, In : Journal of Power Sources. 434, p. 1-7 7 p., 226755.

Research output: Contribution to journalJournal articleResearchpeer-review

Protons
Ion exchange
contamination
Contamination
Iron

Mathematical Model of Natural Circulation Biomass Boilers during Start-Up

Bilde, K. G., Sørensen, K. & Condra, T., Nov 2019, In : International Journal of Heat and Mass Transfer. 143, 8 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Boiler circulation
Steam
boilers
biomass
steam
1 Downloads (Pure)

Modelling of the integration of HTL with CCS/CCU for the production of drop-in biofuels

Sanchez, E. M. L., May 2019.

Research output: Contribution to conference without publisher/journalPosterResearchpeer-review

Open Access
File

Parametric analysis and optimization for exergoeconomic performance of a combined system based on SOFC-GT and supercritical carbon dioxide Brayton cycle

Chen, Y., Wang, M., Liso, V., Samsatli, S., Samsatli, N., Chen, J., Li, N. & Zhao, Y., 2019, (Submitted) In : Energy Conversion and Management. 186

Research output: Contribution to journalJournal articleResearchpeer-review

The effect of Fe 3+ contamination in feed water on proton exchange membrane electrolyzer performance

Li, N., Araya, S. S. & Kær, S. K., May 2019, In : International Journal of Hydrogen Energy. 44, 26, p. 12952-12957 6 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Ion exchange
Protons
contamination
Contamination
membranes
File
ferric ions
electrolysis
current density
membranes
impurities

Trajectory integrated smoothening of exchange fields for discrete phase simulations

Simonsen, A. S., Deen, N. G., Sørensen, K., Condra, T. & Rosendahl, L., 2019, In : Computers & Fluids.

Research output: Contribution to journalJournal articleResearchpeer-review

Computational fluid dynamics
Trajectories
Normal distribution
Thermal energy
Probability density function
2018

A Comparison of the Proton Exchange Membrane Fuel Cell Water Balance Measured Simultaneously with the Water Knock-out Method and Hot Wire Anemometry

Al Shakhshir, S., Liso, V., Berning, T. & Kær, S. K., 2018, In : ECS Transactions. 86, 13, p. 199-209 11 p.

Research output: Contribution to journalConference article in JournalResearchpeer-review

Proton exchange membrane fuel cells (PEMFC)
Wire
Water
Anodes
Fuel cells
1 Citation (Scopus)

Current and Temperature Distribution Measurement in a Polymer Electrolyte Membrane Water Electrolyzer Cell

Zhou, F., Al Shakhshir, S. & Kær, S. K., May 2018, In : ECS Transactions. 85, 13, p. 1005-1012 8 p.

Research output: Contribution to journalConference article in JournalResearch

Temperature distribution
Electrolytes
Membranes
Polymers
Water
104 Downloads (Pure)

Dynamic model of a heat pump based house heating system

Singh, S. & Sørensen, K., Sep 2018, Proceedings of the 59th SIMS Conference on Simulation and Modelling, SIMS 2018. Linköping University Electronic Press, Vol. 153. p. 87-94 8 p. (Linköping Electronic Conference Proceedings).

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

Open Access
File
Dynamic models
Pumps
Heating
Heat pump systems
District heating
1 Citation (Scopus)

Early stages of agglomeration of adhesive particles in fully-developed turbulent pipe flows

Hærvig, J., Sørensen, K. & Condra, T. J., Sep 2018, In : International Journal of Multiphase Flow. 106, p. 254-267 14 p.

Research output: Contribution to journalJournal articleResearchpeer-review

pipe flow
Pipe flow
agglomeration
adhesives
Adhesives
10 Citations (Scopus)

Fin-and-tube heat exchanger enhancement with a combined herringbone and vortex generator design

Välikangas, T., Singh, S., Sørensen, K. & Condra, T. J., Mar 2018, In : International Journal of Heat and Mass Transfer. 118, p. 602-616 14 p.

Research output: Contribution to journalJournal articleResearchpeer-review

vortex generators
tube heat exchangers
Gas generators
Tubes (components)
fins
1 Citation (Scopus)

From rotating disk electrode to single cell: Exploration of PtNi/C octahedral nanocrystal as practical proton exchange membrane fuel cell cathode catalyst

Wang, J., Li, B., Gao, X., Yang, D., Lv, H., Xiao, Q., Kær, S. K. & Zhang, C., Dec 2018, In : Journal of Power Sources. 406, p. 118-127 10 p.

Research output: Contribution to journalJournal articleResearchpeer-review

cell cathodes
rotating disks
Rotating disks
Proton exchange membrane fuel cells (PEMFC)
Nanocrystals

Improving the Performance of an Air-Cooled Fuel Cell Stack by a Turbulence Inducing Grid

Pløge, L. J., Fallah, R., Al Shakhshir, S., Berning, T. & Gao, X., 2018, In : ECS Transactions. 86, 13, p. 77-87 11 p.

Research output: Contribution to journalConference article in JournalResearchpeer-review

Fuel cells
Cathodes
Turbulence
Computational fluid dynamics
Air
93 Downloads (Pure)

Improving the Performance of an Air-Cooled Fuel Cell Stack by a Turbulence Inducing Grid

Pløge, L. J., Fallah, R., Al Shakhshir, S., Berning, T. & Gao, X., Oct 2018, p. 1. 1 p.

Research output: Contribution to conference without publisher/journalPosterResearchpeer-review

File
Fuel cells
Cathodes
Turbulence
Channel flow
Air
1 Citation (Scopus)

Investigating different break-in procedures for reformed methanol high temperature proton exchange membrane fuel cells

Thomas, S., Araya, S. S., Vang, J. R. & Kær, S. K., Aug 2018, In : International Journal of Hydrogen Energy. 43, 31, p. 14691-14700 10 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Proton exchange membrane fuel cells (PEMFC)
fuel cells
Methanol
methyl alcohol
membranes
1 Citation (Scopus)
104 Downloads (Pure)

Modelling and Experimental Analysis of a Polymer Electrolyte Membrane Water Electrolysis Cell at Different Operating Temperatures

Liso, V., Savoia, G., Simon Araya, S., Cinti, G. & Kær, S. K., Nov 2018, In : Energies. 11, 12, p. 1-18 18 p., 3273.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
Electrolyte
Experimental Analysis
Electrolysis
Membrane
Polymers
87 Downloads (Pure)

Modelling of hot air chamber designs of a continuous flow grain dryer

Kjær, L. S., Poulsen, M., Sørensen, K. & Condra, T. J., Oct 2018, In : Engineering Science and Technology, an International Journal. 21, 5, p. 1047-1055 9 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
Driers (materials)
Air
Temperature distribution
Fuel burners
Ducts

Model-supported analysis of degradation phenomena of a PEM water electrolysis cell under dynamic operation

Frensch, S. H., Olesen, A. C., Araya, S. S. & Kær, S. K., May 2018, ECS Transactions: Oxygen or Hydrogen Evolution Catalysis for Water Electrolysis 4. Xu, H., Ayers, K. E., Kulesza, P. J. & Wu, G. (eds.). 11 ed. Electrochemical Society Inc., Vol. 85. p. 37-45 9 p. (ECS Transactions).

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

Electrolysis
Degradation
Contact resistance
Water
Electrodes
7 Citations (Scopus)
285 Downloads (Pure)

Model-supported characterization of a PEM water electrolysis cell for the effect of compression

Frensch, S. H., Olesen, A. C., Simon Araya, S. & Kær, S. K., Feb 2018, In : Electrochimica Acta. 263, p. 228-236 9 p.

Research output: Contribution to journalJournal articleResearchpeer-review

File
Electrolysis
Polarization
Water
Contact resistance
Mass transfer

On the Effect of Bipolar Plate Mechanical Properties on the Current Distribution of Proton Exchange Membrane Water Electrolysis

Al Shakhshir, S., Zhou, F. & Kær, S. K., 2018, In : ECS Transactions. 86, 13, p. 683-693 11 p.

Research output: Contribution to journalConference article in JournalResearch

Electrolysis
Ion exchange
Protons
Torque
Membranes
1 Citation (Scopus)

On the effect of Clamping Pressure and Methods on the Current Distribution of a Proton Exchange Membrane Water Electrolyzer

Al Shakhshir, S., Zhou, F. & Kær, S. K., Jun 2018, In : ECS Transactions. 85, 13, p. 995-1004 10 p.

Research output: Contribution to journalConference article in JournalResearchpeer-review

Electrolysis
Ion exchange
Protons
Membranes
Water
63 Downloads (Pure)

On the Effect of Clamping Pressure and Methods on the Current Distribution of a Proton Exchange Membrane Water Electrolyzer

Al Shakhshir, S., Zhou, F. & Kær, S. K., May 2018, p. 1. 1 p.

Research output: Contribution to conference without publisher/journalPosterResearch

Open Access
File
Ion exchange
Protons
Membranes
Electrolysis
Water
9 Downloads (Pure)

Performance of a reversible heat pump / organic Rankine cycle unit coupled with a passive house to get a Positive Energy building

Dumont, O., Do Carmo, C. M. R., Fontaine, V., Randaxhe, F., Quoilin, S., Lemort, V., Elmegaard, B. & Nielsen, M. P., 2 Jan 2018, In : Journal of Building Performance Simulation. 11, 1, p. 19-35 17 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
Rankine cycle
Pump
Heat
Pumps
Cycle

Physical modelling of heat pump for simultaneous space heating and hot water demand

Singh, S., Sørensen, K., Bojesen, C. & Nielsen, M. P., Nov 2018, Book of Abstract: 4th International Conference on Smart Energy Systems and 4th Generation District Heating. Lund, H. (ed.). Aalborg University, p. 302-303 2 p.

Research output: Contribution to book/anthology/report/conference proceedingConference abstract in proceedingResearchpeer-review

Open Access
Space heating
Pumps
Water
Thermal energy
Drying
5 Citations (Scopus)

The Influence of Phosphoric Acid Migration on the Performance of High Temperature Polymer Electrolyte Fuel Cells

Halter, J., Thomas, S., Kær, S. K., Schmidt, T. J. & Büchi, F. N., Sep 2018, In : Journal of Power Sources. 399, p. 151-156 6 p.

Research output: Contribution to journalJournal articleResearchpeer-review

phosphoric acid
Phosphoric acid
Electrolytes
fuel cells
Fuel cells
24 Citations (Scopus)

The status of 4th generation district heating: Research and results

Lund, H., Østergaard, P. A., Chang, M., Werner, S., Svendsen, S., Sorknæs, P., Thorsen, J. E., Hvelplund, F., Mortensen, B. O. G., Mathiesen, B. V., Bojesen, C., Duic, N., Zhang, X. & Möller, B., 1 Dec 2018, In : Energy. 164, p. 147-159 13 p.

Research output: Contribution to journalReview articleResearchpeer-review

District heating
Costs
Heating
2017
5 Citations (Scopus)
139 Downloads (Pure)

An EIS alternative for impedance measurement of a high temperature PEM fuel cell stack based on current pulse injection

Jeppesen, C., Araya, S. S., Sahlin, S. L., Andreasen, S. J. & Kær, S. K., Jun 2017, In : International Journal of Hydrogen Energy. 42, 24, p. 15851-15860 10 p.

Research output: Contribution to journalJournal articleResearchpeer-review

File
impedance measurement
Electrochemical impedance spectroscopy
fuel cells
Fuel cells
impedance
9 Citations (Scopus)

A new modified-serpentine flow field for application in high temperature polymer electrolyte fuel cell

Singdeo, D., Dey, T., Gaikwad, S., Andreasen, S. J. & Ghosh, P. C., Jun 2017, In : Applied Energy. 195, p. 13-22 10 p.

Research output: Contribution to journalJournal articleResearchpeer-review

fuel cell
electrolyte
flow field
Fuel cells
Flow fields
81 Downloads (Pure)

Concrete thermal energy storage for steam generation: A numerical investigation

Singh, S. & Sørensen, K., Sep 2017, Proceedings of the 58th Conference on Simulation and Modelling, SIMS 2017. Jonsson, M. T. (ed.). Linköping University Electronic Press, p. 234-240 7 p. 032. (Linköping Electronic Conference Proceedings).

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

Open Access
File
Thermal energy
Energy storage
Steam
Concretes
Heat transfer
2 Citations (Scopus)
94 Downloads (Pure)

Economic assessment of electric energy storage for load shifting in positive energy building

Dumont, O., Do Carmo, C. M. R., Georges, E., Quoilin, S. & Lemort, V., Mar 2017, In : International Journal of Energy and Environmental Engineering. 8, 1, p. 25–35 11 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
Electric energy storage
Loads (forces)
Economics
Electricity
Lightning
67 Downloads (Pure)

Effect of natural convection and radiation inside of a hollow beam in a standard fire

Välikangas, T., Pajunen, S., Baczkiewicz, J., Singh, S. & Sørensen, K., Sep 2017, Proceedings of the the 58th SIMS Conference on Simulation and Modelling, SIMS 2017. Linköping University Electronic Press, p. 121-127 7 p. (Linköping Electronic Conference Proceedings).

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

Open Access
File
Natural convection
Fires
Temperature distribution
Radiation
Temperature
891 Downloads (Pure)

Electrochemical Impedance Spectroscopy (EIS) Characterization of Reformate-operated High Temperature PEM Fuel Cell Stack

Sahlin, S. L., Simon Araya, S., Andreasen, S. J. & Kær, S. K., Apr 2017, In : International Journal of Power and Energy Research. 1, 1, p. 20-40 20 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
Electrochemical impedance spectroscopy
Stoichiometry
Fuel cells
Anodes
Reforming reactions

Experimental and Numerical Investigation of Humidity Effect on Performance of PEM Fuel Cells

Liso, V., Al Shakhshir, S. & Nielsen, M. P., 2017, In : ECS Transactions. 80 , 8, p. 345-356 12 p.

Research output: Contribution to journalConference article in JournalResearchpeer-review

Fuel cells
Atmospheric humidity
Membranes
Hydration
Acoustic impedance
9 Citations (Scopus)
25 Downloads (Pure)

Experimental study to distinguish the effects of methanol slip and water vapour on a high temperature PEM fuel cell at different operating conditions

Thomas, S., Vang, J. R., Araya, S. S. & Kær, S. K., Apr 2017, In : Applied Energy. 192, p. 422–436 15 p.

Research output: Contribution to journalJournal articleResearchpeer-review

fuel cell
density current
Water vapor
methanol
Fuel cells
4 Citations (Scopus)
138 Downloads (Pure)

Fault detection and isolation of high temperature proton exchange membrane fuel cell stack under the influence of degradation

Jeppesen, C., Araya, S. S., Sahlin, S. L., Thomas, S., Andreasen, S. J. & Kær, S. K., Aug 2017, In : Journal of Power Sources. 359, p. 37-47 11 p.

Research output: Contribution to journalJournal articleResearchpeer-review

File
fault detection
Proton exchange membrane fuel cells (PEMFC)
Fault detection
fuel cells
isolation
6 Citations (Scopus)

Impedance characterization of high temperature proton exchange membrane fuel cell stack under the influence of carbon monoxide and methanol vapor

Jeppesen, C., Polverino, P., Andreasen, S. J., Araya, S. S., Sahlin, S. L., Pianese, C. & Kær, S. K., Aug 2017, In : International Journal of Hydrogen Energy. 42, 34, p. 21901-21912 12 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Proton exchange membrane fuel cells (PEMFC)
Carbon monoxide
carbon monoxide
fuel cells
Methanol
14 Citations (Scopus)

Implications of fin profiles on overall performance and weight reduction of a fin and tube heat exchanger

Singh, S., Sørensen, K., Simonsen, A. S. & Condra, T. J., Mar 2017, In : Applied Thermal Engineering. 115, p. 962–976 15 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Tubes (components)
Waste heat utilization
Heat exchangers
Aspect ratio
Fins (heat exchange)